Dear all, We are pleased to announce to you our new publication in Aquatic Mammals Journal: *Pivari, D.; Pacca, H. M. & Sebrian, T. 2017. Occurrence of Boto-do-Araguaia (**/Inia araguaiaensis/**) in a Region of the Araguaia River, Brazil, Documented for an Environmental Impact Study for a Hydroelectric Dam. Aquatic Mammals 2017, 43(5), 530-536.* Abstract: This study was part of a environmental impact studies carried out in 2009 related to a dam to be built in the Araguaia River, Brazil. Was verified the presence of Boto-do-Araguaia, /Inia araguaiaensis/ and estimate its preference in use of habitats in the dam´s area of influence. The methodology used was the active search of the Botos. 183h of sampling efforts were done during the different hydrological seasons of the river. A total of 119 Botos were spoted in 42 sites of the Araguaia river. 60% of them were seen in more preserved areas with some human action. There was a greater number of Botos spoted during seasons of rising and high (n = 87) compared to the falling and low season (n = 29) (QQ = 116, p <0.0001). The ratio of Botos in flooded forest and river-bed changes on the rising / high and falling / low seasons. In the falling / low, 66% of Botos were found in the river-bed and backwater regions (QQ = 16.5, p <0.0001). In the rising / high season, they were often associated with flooded forest due to the demand for food resources (64%) (QQ = 8.10, p = 0.0071). The foraging behavior was the most observed category in rising (100%), low (100%) and falling (77%) seasons, whereas the traveling behavior was predominant in the high season (63%). /I.//araguaiaensis/is a recentlydiscovered species (2014). It is known that this population is isolated in the basins of Tocantins and Araguaia rivers and is threatened due to habitat loss by the intense human occupation of the region. This paper is available at:http://ecotonus.com.br/site/43-5_Pivari-1.pdf Or can be requested at: daniela@ecotonus.com.br <mailto:daniela@ecotonus.com.br> Cheers, Daniela Pivari --
